METHOD FOR PREPARING AND TREATING CLOTHS OF CARBON, KEVLAR AND CARBON-KEVLAR FIBRES WITH A VIEW TO FORMING COMPOSITE POLYMERIC BOARDS

摘要

The invention relates to a process for treating cloths made of carbon, Kevlar or carbon-Kevlar fibres to be used for manufacturing composite polymeric boards. According to the invention, the process consists in washing the extended cloth by pulverization of a 30% surface-active solution, degreasing the same by pulverization of a 20% sodium hydroxide solution, rinsing with water jet, drying naturally for 24 h, at the ambient temperature, applying by pulverization a solution of 30% hypochlorite, followed by natural drying for 1 h, applying by pulverization a solution of 20% polybutadiene rubber addittivated with 6% alumino-silicate and 6% amorphous carbon, followed by natural drying for 2 h, applying by pulverization a component A - epoxy resin precursor addittivated with 6% alumino-silicate and 6% amorphous carbon, followed by natural drying for 2 h, applying by pulverization a component B - amine precursor addittivated with 6% alumino-silicate and 6% amorphous carbon, followed by a final natural drying for 24 h at the ambient temperature.